Incorrect water temperature High

Worcester Bosch Incorrect water temperature Fault Code

Q: What does the Worcester Bosch Incorrect water temperature fault code mean?

Your boiler is struggling to control the temperature of the water, which means it cannot reliably provide hot water or heating.

Q: How much does it cost to fix Worcester Bosch error code Incorrect water temperature?

Typical repair cost for the Worcester Bosch Incorrect water temperature fault is £150-300 including labour.

Also written as INCORRECTWATERTEMPERATURE — same fault.

The Worcester Bosch Incorrect water temperature fault code means: your boiler is struggling to control the temperature of the water, which means it cannot reliably provide hot water or heating.. It appears on 1 Worcester Bosch model in our database.

Technical description: Incorrect gas rate or Water section sticking or faulty

Typical repair cost £150-300 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Worcester Bosch models that show the Incorrect water temperature fault code

Click a model for the full fault code list and model-specific repair notes.

WR325 RSF Repair: £150-300

Source

Worcester Bosch Incorrect water temperature fault code information on this page is sourced and cross-checked against the official Worcester Bosch service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026